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Finding the Fourth Proportional to 306,051.30, 459,076.95 and 243,065.70

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Solution

The fourth proportional to 306,051.30, 459,076.95 and 243,065.70 is: 364,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,051.30 : 459,076.95 = 243,065.70 : x
  2. Step 2: Convert to fraction form
    306,051.30/459,076.95 = 243,065.70/x
  3. Step 3: Cross multiply
    306,051.30x = 459,076.95 × 243,065.70
  4. Step 4: Simplify right side
    306,051.30x = 111,585,860,205.62
  5. Step 5: Solve for x
    x = 111,585,860,205.62/306,051.30
  6. Step 6: Final answer
    x = 364,598.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.